If A = x% of y and B = y% of x, then which of the following is true?

The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is:

In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?

A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?

The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?

Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

A, P, R, X, S and Z are sitting in a row. S and Z are in the centre. A and P are at the ends. R is sitting to the left of A. Who is to the right of P ?

There are 8 houses in a line and in each house only one boy lives with the conditions as given below: Jack is not the neighbour Siman. Harry is just next to the left of Larry. There is at least one to the left of Larry. Paul lives in one of the two houses in the middle. Mike lives in between Paul and Larry. If at least one lives to the right of Robert and Harry is not between Taud and Larry, then which one of the following statement is not correct ?